我正在尝试为 wordpress 插件构建一个设置表单。我不知道具体有多少选项,所以它必须是具有动态结构的形式。对于构建选项表单,我使用设置 API ,但找不到创建动态字段的方法。
我有带有默认选项的数组:
function filtered_install(){
//defaults options
$array= Array
(
'0' => 1,
'1' => 1,
'2' => 3
);
add_option('snso_fields_array',$array);
}
添加设置页面:
# Register a new page in the "Settings" tab:
function filtered_add_admin_pages() {
$page = add_options_page(
'Setting search.', // - page title administration
'Search with filters', // - the name of the menu item
'manage_options', // - the right of access to editing
'filteder_search.php', // - slug
'filtered_options_page' // - callback.
);
}
添加表格:
function filtered_options_page()
{
echo '<div class="wrap">';
screen_icon(); // - icon.
echo '<form method="post" action="options.php">'; // - processing of the request.
do_settings_sections('snso_page'); // - output section.
settings_fields('snso_fields'); // - output fields belonging to the same group.
echo '<a href=\'#\' id=\'add\'>Add new field</a>'; // - button that add more fields.
submit_button(); // - submit button.
echo '</form>';
echo '</div>';
}
从数组数据中获取表单中的可重复字段:
# Register the field in the database and make out their display.
function filtered_options_fields(){
register_setting('snso_fields', 'snso_fields_array'); // - register field in the database.
add_settings_section(
'snso_section_array', // - section id.
'',
'snso_section_array_callback',
'snso_page' // - options page.
);
$options = get_option('snso_fields_array');
foreach($options as $key=>$field) {
//id, title (label), callback, page, section(from add_settings_section), args
add_settings_field(
"option_$key",
"Field # $key",
"business_setting",
"snso_page",
"snso_section_array",
$key);
}
function business_setting($key) {
$options = get_option('snso_fields_array');
echo "<input name='snso_fields_array[$key]' id='option_$key' type='text' value='" . $options[$key] . "' />";
}
}
# An array of fields with the saved settings:
function snso_section_array_callback() {
echo '<p>The fields listed below are stored in one cell array table <code>wp_options</code>.</p>';
echo '<pre><code>'; print_r(get_option('snso_fields_array')); echo '</code></pre>';
}
比我单击添加 ID 为“添加”的新字段链接时,我需要在数据库中更新选项“snso_fields_array”
js。文件:
jQuery(function(){
jQuery('#add').click(function(evt){
evt.preventDefault();
var data = {
action: 'update_options',
my_var: 'my_data'
};
jQuery.post( ajaxurl, data);
});
});
注册一个动作“update_options”:
add_action( 'wp_ajax_update_options', 'update_options_callback' );
add_action( 'wp_ajax_nopriv_update_options', 'update_options_callback' );
更新选项“snso_fields_array”:
function update_options_callback() {
$new_value = $_POST['my_var'];
if ($new_value ='my_data') {
$new_array = get_option('snso_fields_array');
$new_array[]='';
update_option('snso_fields_array',$new_array);
}
}
它工作正常
现在我需要用“snso_fields_array”选项的新数据刷新我的表单。